Global Patent Index - EP 1781988 A1

EP 1781988 A1 20070509 - HYBRID BURNER LANCE

Title (en)

HYBRID BURNER LANCE

Title (de)

HYBRIDBRENNERLANZE

Title (fr)

LANCE POUR BRULEUR HYBRIDE

Publication

EP 1781988 A1 20070509 (DE)

Application

EP 05775906 A 20050818

Priority

  • EP 2005054073 W 20050818
  • DE 102004041272 A 20040823

Abstract (en)

[origin: WO2006021541A1] The invention relates to a lance (3) for a hybrid burner (2) of a combustion chamber (1) of a gas turbine. Said lance comprises: - an interior duct (10) for a liquid fuel; - an exterior duct (11) for a gaseous fuel, which coaxially surrounds the interior duct (10); - several outer nozzles (12) that are disposed in a stellar manner and extend radially from the exterior duct (11); - several inner nozzles (14) which extend radially from the interior duct (10) and run coaxially within one of the outer nozzles (12). respectively; - and a distribution section (18) that is located upstream of the outer nozzles (12) in the exterior duct (11) and is provided with several stellarly arranged, coaxially extending passages (19) for the gaseous fuel. In order to reduce the resistance to fluid flow in the gas path of the lance (3), the passages (19) are wider in the circumferential direction than they are in the radial direction.

IPC 8 full level

F23D 11/10 (2006.01)

CPC (source: EP US)

F23D 11/108 (2013.01 - EP US); F23D 17/002 (2013.01 - EP US); F23R 3/36 (2013.01 - EP US)

Citation (search report)

See references of WO 2006021541A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

DE 102004041272 A1 20060302; DE 102004041272 B4 20170713; CA 2577770 A1 20060302; CA 2577770 C 20130312; EP 1781988 A1 20070509; EP 1781988 B1 20150930; ES 2556165 T3 20160113; MX 2007001887 A 20081029; TW 200617323 A 20060601; TW I366648 B 20120621; US 2007207425 A1 20070906; US 7963764 B2 20110621; WO 2006021541 A1 20060302

DOCDB simple family (application)

DE 102004041272 A 20040823; CA 2577770 A 20050818; EP 05775906 A 20050818; EP 2005054073 W 20050818; ES 05775906 T 20050818; MX 2007001887 A 20050818; TW 94128775 A 20050823; US 67818207 A 20070223